This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 5 |
| 12 | 22 |
| 13 | 71 |
| 14 | 200 |
| 15 | 500 |
| 16 | 1144 |
| 17 | 2431 |
| 18 | 4862 |
| 19 | 9237 |
| 20 | 16796 |
| 21 | 29393 |
| 22 | 49742 |
| 23 | 81719 |
| 24 | 130750 |
| 25 | 204297 |
| 26 | 312455 |
| 27 | 468682 |
| 28 | 690690 |
| 29 | 1001500 |
| 30 | 1430715 |
| 31 | 2016007 |
| 32 | 2804880 |
| 33 | 3856710 |
| 34 | 5245125 |
| 35 | 7060746 |